Sullair 02250160-842, Инструкция по эксплуатации, Страница: 28 / 31

Section 5
TROUBLESHOOTING
24
TABLE 5.1 WS Controller Troubleshooting Guide (Continued)
MESSAGE PROBABLE CAUSE REMEDY
Main Motor Overload Main Motor Overload Relay
Tripped. Reset overload after heater element cools
down.
Check that compressor is properly configured.
Ensure load pressure is set below limit of
compressor.
Check line voltage, if low consult power
company.
Maintenance Service interval has expired.
Maintenance due. Select Maintenance from menu to see service
due and part numbers.
Option Input
Option Input Run User furnished switch has
operated. Check function of optional device.
Power Interruption Motor Starter(s) Not Working.
No Contact to Input D8.
Intermittent Control Power. Check starter controls and wiring.
Check wiring to input.
Check line voltage and connections.
Separator dP High
(fault)
High Separator dP
(warning) Pressure Differential Across
Separator High.
Plugged separator elements.
Pressure sensor failure. Replace separator.
Check sensor wiring.
Sequence Comm Error Cable or connection fault
between compressors.
Improper sequence
adjustments. Check wiring.
Check sequence settings of all compressors in
the sequence.
Starter Aux. Contact Starter failed to operate.
Faulty auxiliary contact. Check starter and control wiring.
Check contact and contact wiring.
UI Voltage too High Controller fault. Contact Sullair Factory Service.
UI Voltage too Low Controller fault. Contact Sullair Factory Service.
User Option Switch User furnished switch has
operated. Check function of optional device.
Voltage Sensor failed
High Controller fault. Contact Sullair Factory Service.
Voltage Sensor failed
Low Controller fault. Contact Sullair Factory Service.
5.3 MACHINE BEHAVIOR AFTER A POWER INTERRUPTION
If the compressor was faulted prior to the power interruption, the controller will resume
the FAULTED condition and display the reason for the fault. Repair the cause of the fault
and press the STOP pad to reset the controller.
If the compressor was manually stopped prior to the power interruption, the controller will
return to the manually stopped mode. Press the start button to manually restart
operation.
If the restart timer is greater than zero AND the controller was in Automatic or Manual
mode prior to the interruption, the controller will resume that mode after the restart timer
expires. No key press is necessary to restart the compressor.